#9A6970

CSS

:root {
  --cinnapink: #9a6970;
  --cinnapink-rgb: 154 105 112;
  --cinnapink-oklch: oklch(0.574 0.064 9.8);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(351 20% 51%);
  border-color: oklch(0.574 0.064 9.8);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #9a6970;
  --color-cinnapink-50: #ffeef0;
  --color-cinnapink-100: #fce0e2;
  --color-cinnapink-200: #eecacd;
  --color-cinnapink-300: #d6abaf;
  --color-cinnapink-400: #c18f96;
  --color-cinnapink-500: #ac757d;
  --color-cinnapink-600: #91636a;
  --color-cinnapink-700: #744f54;
  --color-cinnapink-800: #56393e;
  --color-cinnapink-900: #3c272b;
  --color-cinnapink-950: #261518;
}

SCSS

$cinnapink: #9a6970;
$cinnapink-rgb: 154, 105, 112;
$cinnapink-light: mix(#fff, $cinnapink, 20%);
$cinnapink-dark: mix(#000, $cinnapink, 20%);

.element {
  color: $cinnapink;
  box-shadow: 0 0 0 2px rgba($cinnapink, 0.35);
}